Electric kettle



FIG. 1 is a front elevational view of an electric kettle showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear perspective view thereof;

FIG. 6 is a front perspective view thereof;

FIG. 7 is a rear perspective view thereof; and,

FIG. 8 is a left side elevational view thereof. 

The ornamental design for an electric kettle, as shown and described. 